A new edge detection algorithm using wavelet and threshold method

CORC > 北京大学 > 信息科学技术学院

	A new edge detection algorithm using wavelet and threshold method
	Liu, Yi ; Cheng, Xu
刊名	journal of information and computational science
	2009
英文摘要	Based on the wavelet theory, a medical image is analyzed. Each wavelet coefficient is viewed as an observation and is judged if it belongs to the wavelet transform(WT) modulus maximum. We employ an extended Ostu algorithm to determine the global and multilevel threshold so as to delete those false maximum points with gray level values of pixels less than or equal to the given threshold. Then the piecewise cubic Hermite curves are interpolated between two adjacent edge points to fashion the edge contours. The experimental results show the effectiveness of this algorithm. ? 2009 Binary Information Press.; EI; 0; 4; 1759-1766; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/407566]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Liu, Yi,Cheng, Xu. A new edge detection algorithm using wavelet and threshold method[J]. journal of information and computational science,2009.
APA	Liu, Yi,&Cheng, Xu.(2009).A new edge detection algorithm using wavelet and threshold method.journal of information and computational science.
MLA	Liu, Yi,et al."A new edge detection algorithm using wavelet and threshold method".journal of information and computational science (2009).